pro ‧ phy ‧ lax ‧ is /ˌprɒfəˈlæksəs, ˌprɒfɪˈlæksəs $ ˌprɑː-/ BrE AmE noun [uncountable and countable]
[ Date: 1800-1900 ; Language: Modern Latin ; Origin: Greek prophylaktikos ; ⇨ ↑ prophylactic 1 ]
technical a treatment for preventing disease
pro ‧ phy ‧ lax ‧ is /ˌprɒfəˈlæksəs, ˌprɒfɪˈlæksəs $ ˌprɑː-/ BrE AmE noun [uncountable and countable]
[ Date: 1800-1900 ; Language: Modern Latin ; Origin: Greek prophylaktikos ; ⇨ ↑ prophylactic 1 ]
technical a treatment for preventing disease
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012